Re: [LARTC] HTB stats

[Anton Yurchenko <phila@dg.net.ua>]

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Stef Coene wrote:

>On Wednesday 26 June 2002 23:43, Anton Yurchenko wrote:
>  
>
>>hello,
>>
>>about output of tc -s -d .....
>>
>>about my setup:
>>all input and output is done on one interface, box recives on it and
>>from it it forwards.
>>very simple, a root 1:1 for output  and 1:2 for input classes at
>>100mbit. and below lots of children with different rates.
>>ceil for children is 1/3 of rate.
>>    
>>
>So the ceil is smaller then the rate?
>  
>
Sorry mistype. ceil is "rate" + 1/3 rate

>  
>
>>questions:
>>1. why do I have "lended" for children classes almost the same as
>>"sent", who do they lend to? the neighboring classes?
>>    
>>
>Yes, to other classes.
>"lended is # of packets donated by this class (from its rate)"
>  
>
I did some experimenting, and had a root class and just 1 child class, 
and this child class still had lended pkts to smbody. Who did it lend it to?

>  
>
>>2. What is overlimits? is it incremented when certain pkt goest above
>>"rate", what if both "rate" and "ceil"? incremented twice?
>>    
>>
>overlimits : Packet is not sended due to ceil or rate restrictions  So there 
>was to much data in the class.  But don't believe this too much.  It depends 
>on how often the qdisc looked for packet.
>  
>
What does "looked" mean? could you pleases explain it a bit more? How 
does it look for a pkt? I`m very interested in finding out what that 
value means.

>  
>
>>3. "dropped"- if the pkt is overlimit it may be dropped right? if it
>>cannot be delayed, right? is  this the reason why I have such a
>>difference between them?
>>    
>>
>Between what?
>  
>
Between "overlimits" and "dropped"

>  
>
>>4. what is "level", the level in classes tree?
>>    
>>
>"Level of class determines its position in hierarchy. Leaves has level 0, 
>root classes LEVEL_COUNT-1 and each inner class has level one less than its 
>parent. See pictures below (LEVEL_COUNT=3 there). "
>
>I quoted some info from http://luxik.cdi.cz/~devik/qos/htb/
>
>Stef
>
>  
>


-- 

Anton Yurchenko<phila@dg.net.ua>
Digital Generation



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